Heh! See my previous post. I remember watching those same flybys when I was in the 2nd and 3rd grade, 66-67 timeframe. Could have been some of your instructors in those formations.
started when blades were wood and the electric starter was optional - parts flying off put me down 17 times - 2 engine failures in the same day. got the 180 autorotation down to 200 feet in H-19. Sprayed bananas in Guatemala with serial # 11 bell H-13 (mod 47) Nobody left to reminisce with. Nobody understands the mindset of old helo pilots -